Oliver, T. L. (1993). D.D.R. collectors reference guides 1949-1990. T.L.O.-Publ..
Chicagoスタイル(17版)引用形式Oliver, Tony L. D.D.R. Collectors Reference Guides 1949-1990. Eton Wick, near Windsor: T.L.O.-Publ., 1993.
MLA(8版)引用形式Oliver, Tony L. D.D.R. Collectors Reference Guides 1949-1990. T.L.O.-Publ., 1993.
警告: この引用は必ずしも正確ではありません.